Oven.



F. STASEK.

I OVEN. APPLICAT ION FILED FEB. 9,1914.

1,136,493. Patented Apr; 20, 1915.

3 SHEETS-SHEET 1.

F.-STASEK.

OVEN.

APPLlCATiQN FILED FEB. 9, 1914.

i sfifigg Patented Apr. 20, 1915.

3 SHEETFEHEET 3.

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FRANK sTAsEK, OF CLEVELAND, 01110.

OVEN.

Application filed February 9, 1914. Serial Nb. 817,449.

To (11171710772. it in my com-cm .Be it known that l. Fawn S'iwsian, a citizen of the lnited States, and resident of Cleveland, in the county oi Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Ovens, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

The objects of the invention are to pro vide a bake oven in which the an'iount and distribution of heat can be controlled at the will of the operator, and in which the oven chamber is substantially inclosed by the heating agency, so that the heat will be. evenly applied to all sides of the articles treated therein.

The invention further comprises n'ieans for separating the chamber into sections and for independently heating the same, this construction permittinfJ,- of removing theseparating means so as to produce a. single. chamber of the full capacity of the oven.

It also includes a structure composed of detachable fines and connecting ,deviccs whereby all parts can be made accessible for cleaning.

It also includes means l'or i ormin; an air tight ceiling for the oven chamber and further consists in the combination and arrangement of parts and construction oi details hereinafter described, shown in the accompanying drawings and specifically pointed out in the claims.

in the accompanying drawings Figure 1. is a central transverse. section of the oven; Fig. 2 is a plan view oi' the oven with the root removed; Fig. 3 is a horizontal section of the device below the iloor oi the oven showing theuheatingr ilucs and iire place;

Fig. -lis a horizontal section of the device just above the oven floor, showing the iloor oitheo'reii Fig 5 isa longitudinal vertical central section;v Fig. (3 is a perspective view of a corner flue. connection upon the upper tier of fines; Fig. 7 is a similar view oi one oi the iiucs at the side of the oven chamber. showing connections at its ends i'or other iinesi Fig. 8 is a similar view of one of the tines in the upper tier which forms the ceiling of the oven chamber; Fig. 9 is a Specification of Letters Patent.

Patented Apr. 20, 13915.

The oven floor comprises a series of ilat topped fines C, (5 disposed longitiidinally oi the oven within its walls. Upon these fines rests a metallic floor 7 and upon this a fire brick flooring is laid preferably of loose bricks which can easily be removed when worn out or disintegrated. These fines are spaced from the end walls of the oven chamber and return fines are formed at their extl'Gll'lltlOS by means of the short partitions S, 8 formed preferably of fire brick, which cause a continuous circulation of the products of combustion in the direction of the arrows shown in Fig. 3.

9, 9 are burners for fuel gas or oil or wood or any incandescent fuel can be used and the heated products of COIIllJllStlOIl pass into the adjacent fines 1Q, 10, at the center of the oven whence the h'otair or gases pass to opposite sides of the oven.

11, 11 are longitudinal fines located at the sides oi the'oven chamber which communicate at their front ends with the lower tiers of fines through corner blocks 11' and at their rear ends with short transverse ilues 12, 12, which are located adjacent to the rear wall oi the chamber and which communicate at their inner ends with an upper tier of lines .153, 13, substantially forming the ceiling thereover. This ceiling is made air tight by means oi flat stop members M Inserted in grooves between the flues 13, 13. 1

These fines are shorter than the chamber and return lilies are formed in the spaces thus ail'orded by means of partitions H, 14. thus providing a continuous circulation from the center oi the chamber outwardly in the direction oi" the arrows.

Finally the fines at the extreme sides of the-oven communicate by means oi the hollow corner connections 1."), 15, with the transverse fines 16, 16, at the rear of the oven and these. inturu communicate with the common chimney '17. In this manner the oven chamber is' inclosed on all sides except. in the i'ront with the heated fines, and the front is preferably protected means llit fere with the working space of the oven chamber.

In openingslt) in the outer wall and inner walls incandescent lamps can be placed to illuminate the oven chamber. To separate the oven chamber into two parts a central partition P can be employed which can be lowered-by means of the gears 20, 20 and racks 21 and an operating shaft 22. By means of this partition the oven chamber can be divided into two compartments and the compartments can be employed to bake different articles at the same time, and the separate heating systems provide means for providing a different degree of temperature for each compartment, asa slow heat for cakes and confections and a quick heat for bread, etc., at the same time, so that the entire oven can be used at once for baking articlesrequiring difl'erent degrees of temperature if desired. A hinged damper D at the front can be used to close one compartment entirely or the other when it is desired to separate the compartments to use only one of them at a time.

The two heating systems provide means for obtaining an even temperature throughout the oven or when the central partition 18 1 used the separate heating systems can provide a given temperature for one and an other temperature for the other. Dampers can be employed in the flues wherever desired.

- Since the flues forming the upper tier are long and may sag or become deflected in the middle at high tem eratures without support, a central arch may be thrown over the oven and each flue may be suspended therefrom at its center by means of rods or chains B attached thereto. The top of the oven can be inclosed at '1 if desired, and a layer of sand can be laid upon the upper tier of flues if desired to retain the heat. A boiler or boilers R, 1%, shown only in Fig. 1 to furnish hot water for the convenience of the baker can also be placed underneath the arched cover if desired. The fines and spacing members between them can be formed of fire brick, terra cotta or of metal as desired and can readily be put together or taken apart for renewal or clean mg when required. The hollow connecting corner blocks can be formed in separate portions for convenience, and close air tight joints which are integral with the lines are obtained by means of overlapping members as shown in the figures. The flooring plates shown in Figs. 1 and 5 are preferably formed of metal. The chimney can be constructed of any well known material such as metal fire brick or terra cotta as desired. The chimney is provided with lateral openeach section of the lower tier of flues.

,sectionto provide a continuous circulation from the center toward each side, longitu dinal flues at the sides of the oven chamber communicating with said floor forming flues, a second tier of longitudinal flues in two sections forming upper wall of said chamber, alternate fiues communicating with each other at their ends, a transverse flue connecting each section of the upper tier of a5 flues with one of said side flues, a chimney centrally located atthe rear of said cham-' her, and transverse flues connecting said chimney with the respective outer fines of said upper tier, and a heating device for cling three sides of said chamber, a chimney,

transverse flues at the rear of said chamber connecting the two portions of the uppertier of flues with sand chimney and independent heating means for the sections of said tiers of flues and means for formin dead air spaces at the front corners of sai ovens.

3. In an oven, an oven chamber, a lower tier of heat supplying flues arranged in sections underneath said chambera an upper tier of heat supplying flues arrangedin two sections and forming the upper wall of said chamber, a flue forming each side of said chamber, and transverse flues forming the rear wall thereof, said side and transverse flues forming means for communication between the correspondin sections of the lower and upper tiers 0% fines, a chimney, and fines connecting the sections of the upper tier of fines with said chimney, a movable partition arranged; to separate said chamber into compartments. corresponding in position to the position of-the sections of said tiers of flues, and a separate means of supplying heat to the flues of each compartment:

4. In an oven, in combination, an oven chamber having a front opening, heat con- 13;)

memes veying fiues inclosin the bottom sides, rear, ed to close one side of said front opening in 10 and top portions o said chamber and ar- Said chamber.

n ranged in sections, a separate device for In testimony whereof I hereunto set my supplying a heating medium to each section, hand this 5 day of January, 1913. a common chimney for said sections, controlling dampers for each section of flues, a FRANKHSTASEK' removable partition in said chamber sepa- In presence of-- rating said chamber into compartments, and RALPH BLUE,

a hinged front edge to said partition adapt- WM. M. MONROE. 

